Polyphenol
Mostrando 13-24 de 181 artigos, teses e dissertações.
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13. Determination of active compounds in raspberry leaf extracts and the effects of extract intake on mice
Abstract Twelve typical polyphenols in raspberry leaf powder (RLP), raspberry leaf extract 1 (RLE) and raspberry leaf extract 2 (RLE-H) were analyzed by HPLC-MS. The sum of their contents in three samples were in the following order: RLP (8.6 mg g-1) < RLE (35.0 mg g-1) < RLE-H (44.1 mg g-1). Ellagic acid and quercetin-3-O-glucuronide were the principal comp
Food Sci. Technol. Publicado em: 04/11/2019
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14. Goitrogenic/antithyroidal potential of moringa leaves (Moringa oleifera) and spinach (Spinacia oleracea) of Indian origin on thyroid status in male albino rats
Moringa leaves and spinach used as vegetables containing cyanogens and polyphenols having suspected antithyroidal activity; however, detailed studies in this aspect found unavailable. Goitrogenic/antithyroid potentiality of those plant foods of Indian origin was evaluated. To explore the goitrogenic/antithyroid effect of those plant foods cyanogenic glucosid
Braz. J. Pharm. Sci.. Publicado em: 24/10/2019
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15. Comparisons of the active components in four unripe raspberry extracts and their activites
Abstract Dried unripe raspberry of Rubus chingii, were prepared as the following four extracts: unpurified raspberry extract (URE), purified raspberry extract (PRE), URE after high temperature-high pressure (UPE-H, HTHP), and PRE after HTHP (PRE-H). The total polyphenolic contents (TPCs) and total flavonoid contents (TFCs) of the four extracts, as assessed b
Food Sci. Technol. Publicado em: 10/10/2019
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16. Dietary total antioxidant capacity as a preventive factor against depression in climacteric women
RESUMO Depressão é caracterizada por causar sofrimento físico ou psicológico e em muitos casos pode levar ao suicídio. Objetivo: avaliar a prevalência de depressão e sua possível relação com a capacidade antioxidante total da dieta (DTAC) e parâmetros nutricionais em mulheres climatéricas participantes de um programa universitário de extensão
Dement. neuropsychol.. Publicado em: 23/09/2019
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17. Propolis polyphenolic compounds affect the viability and structure of Helicobacter pylori in vitro
ABSTRACT To evaluate the anti-Helicobacter pylori activity of the major polyphenol compounds of propolis and their cellular damage, both as single molecule or in combination. Honey bees propolis were fractionated by using CPC and preparative HPLC. Four major polyphenols (chrysin, pinocembrin, galangin and caffeic acid phenethyl ester) were identified by thin
Rev. bras. farmacogn.. Publicado em: 26/08/2019
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18. Ethanol and citric acid improve longevity in Gerbera cv. Mistique
Resumo Etanol e ácido cítrico podem aumentar a longevidade em algumas flores de corte. Porém, seu uso deve ser de extremo cuidado, com métodos de aplicação e concentrações específicas para cada tipo de flor de corte. Assim, o objetivo foi estudar as mudanças físico-químicas e fisiológicas na longevidade de gérberas de corte cv. Mistique, submet
Ornam. Hortic.. Publicado em: 12/08/2019
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19. POLYPHENOL OXIDASE AND PEROXIDASE ENZYME ASSAYS IN SWEET POTATO CULTIVARS HARVESTED AT DIFFERENT TIMES
RESUMO Ensaios enzimáticos são baseados em metodologias descritas na literatura. Entretanto, a cinética enzimática deve ser ajustada para resultados mais confiáveis. Objetivou-se ajustar os ensaios testando diferentes volumes de extrato de polifenoloxidase (PPO) e peroxidase (POD) e tempos de reação em cultivares de batata-doce colhidas em diferentes
Rev. Caatinga. Publicado em: 18/07/2019
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20. Bioactive compounds and value-added applications of cupuassu (Theobroma grandiflorum Schum.) agroindustrial by-product
Abstract Cupuassu is a fruitful species from the Amazon basin with great economical potential, due to the multiple uses of its pulp and seeds in the food and cosmetic industries. This fruit generates large amounts of solid waste, which, despite of its high content of bioactive compounds, is discarded in the environment. Therefore, with the aim of reusing the
Food Sci. Technol. Publicado em: 13/06/2019
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21. Blueberry pomace, valorization of an industry by-product source of fibre with antioxidant capacity
Abstract The industrial by-product of blueberry juice, a source of fibre with antioxidant capacity was used to develop cookies. Once dried and ground the blueberries by-product, its composition and functional properties were analyzed and used to develop fibre enriched cookies. A central composite design was used to optimize the cookie formulation maximizing
Food Sci. Technol. Publicado em: 06/06/2019
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22. Elaboração e caracterização de geleia prebiótica mista de jabuticaba e acerola
Resumo Objetivou-se, com este trabalho, a elaboração e a caracterização físico-química de geleias tradicionais prebióticas mistas de jabuticaba e acerola. As formulações compostas de polpas e blends foram: F1 (75% acerola/25% jabuticaba), F2 (50% acerola/50% jabuticaba), F3 (25% acerola/75% jabuticaba), F4 (100% jabuticaba) e F5 (100% acerola) com 1
Braz. J. Food Technol.. Publicado em: 06/06/2019
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23. Evaluation of the potential astringency of the skins and seeds of different grape varieties based on polyphenol/protein binding
Abstract The potential astringency of eight grape cultivars was evaluated based on polyphenol/protein binding. The parameters such as weights, sizes, total phenols, flavanols and tannins of different grape tissues were determined, and the polyphenol/protein binding was analyzed by SDS-PAGE and spectroscopy. The Cabernet Sauvignon had the highest skin proport
Food Sci. Technol. Publicado em: 30/05/2019
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24. Combined effects of water status and iron deficiency chlorosis on grape composition in non-irrigated vineyards
ABSTRACT: Although water deficit and iron deficiency chlorosis are common environmental stresses in the Mediterranean area, few data are reported in the literature on their effects on vineyards, when acting simultaneously. The main objective of this research was to study the combined effects of iron deficiency and water status on vigor, yield and fruit compo
Sci. agric. (Piracicaba, Braz.). Publicado em: 30/05/2019